53656880 has 20 divisors (see below), whose sum is σ = 124752432. Its totient is φ = 21462720.

The previous prime is 53656859. The next prime is 53656891. The reversal of 53656880 is 8865635.

53656880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335276 + ... + 335435.

Almost surely, 2^53656880 is an apocalyptic number.

It is an amenable number.

53656880 is an abundant number, since it is smaller than the sum of its proper divisors (71095552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53656880 is a wasteful number, since it uses less digits than its factorization.

53656880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670724 (or 670718 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 53656880 is about 7325.0856650281. The cubic root of 53656880 is about 377.1740501770.

The spelling of 53656880 in words is "fifty-three million, six hundred fifty-six thousand, eight hundred eighty".